Manufacturer Part Number

FM24C64B-G

Description

64Kbit FRAM (Ferroelectric RAM) memory chip from Infineon Technologies. Features a serial I2C interface with up to 1MHz clock speed. Packaged in an 8-pin SOIC. Ideal for replacing traditional EEPROM or Flash in systems needing fast write speed and high endurance. Provides non-volatile, random access memory with low power consumption and high write cycle endurance.

Specifications

Memory Type: FRAM (Ferroelectric RAM), non-volatile

Memory Size: 64Kbit (8K x 8)

Interface: I2C, up to 1 MHz operating speed

Access Time: 550 ns

Power Supply Voltage: 4.5V to 5.5V

Operating Temperature: -40°C to +85°C

Mounting Type: Surface Mount

Package: 8-pin SOIC (3.90 mm width)

RoHS: Compliant (ROHS3)

MSL: Level 3 (168 hours floor life)

ECCN: EAR99

HTSUS: 8542.32.0071

Device Structure

FRAM cell array organized as 8K words by 8 bits

Integrated standard 2-wire I2C interface

SOIC 8-pin plastic package for surface mounting

Performance Characteristics

Non-volatile retention: Data is retained without power

Endurance: Practically unlimited write cycles compared to EEPROM/Flash

Very fast writes: No write delays, 550 ns access

Low power operation, suitable for battery-powered devices

Wide operating temperature for industrial environments

Application Environments

Industrial and factory automation

Metering and data logging

Medical devices

Real-time data storage

Wearable electronics

Energy harvesting applications

Systems that require fast non-volatile writes and frequent write operations

Selection Guidelines

Choose this device when frequent write and read cycles are required

Ideal when replacing legacy EEPROM for increased performance

Suitable for systems using 5V power

Verify compatibility with I2C bus at up to 1 MHz

Check system footprint matches 8-SOIC package

Usage Considerations

Observe moisture sensitivity—MSL 3 rating, reflow according to guidelines

Ensure supply voltage stays within 4.5V to 5.5V

Avoid exceeding maximum clock rate of 1MHz on I2C bus

Confirm I2C address configuration for compatibility

Follow ESD precautions during handling and assembly

Potential Equivalent/Replacement Models

Possible equivalents from other manufacturers include:

Cypress/Cypress Semiconductor FM24C64

Fujitsu MB85RC64

Ramtron FM24C64 (acquired by Cypress)

Check pin compatibility, package type, voltage, operating temperature, and I2C compatibility when choosing alternatives. If you need further alternatives or unsure of replacements, please contact our Ariat-Tech sales team for more information.

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